KR20010023927A - Stepped dimpled mounting brackets for heat exchangers - Google Patents

Abstract

Mounting or end brackets 42, 44, 46 and 48 are pairs having a plurality of hollow plates 16 and 18 or through holes 30 and 32 formed therein. ) Flow of fluid through the plate treatment (16,18) or tube by producing a plate and fin heat exchanger (10) of the type with tubes containing end bosses (26, 27, 28). It was published to form a manifold. The fins 34, 36, 38 are located between the tubes extending below the top end of the laminate treatment 16, 18 or between the end bosses 26, 27, 28. End fitting 62 is used as the inlet and outlet of the fluid to the plate treatments 16 and 18 or the tube. Mounting brackets 42, 44, 46 and 48 allow the end fittings to be positioned where desired to define different flow circuits through the plate Daewoos 16 and 18, and also for different sized end fittings. To use. It is adapted to different end fittings 62 without the need to use special spacers, different size pins or special templates. Mounting brackets 42, 44, 46, 48 are parallel to and away from planar center 52 and center 52, opposite eccentric ends 54, 56 parallel to and away from center 52. Located on a plane The central portion has gaps 58 and 60 extending in the transverse direction in the opposite direction to those of the opposite ends 54 and 56. Different fitting sizes are easy to use by changing the height of the spacer.

Description

Stepped Dimple Mounting Bracket for Heat Exchanger {STEPPED DIMPLED MOUNTING BRACKETS FOR HEAT EXCHANGERS}

Heat exchangers in the past have produced stacks, hollow plate treatments or tubes for the flow of a plurality of single fluids. The pandaeuna or tubes frequently caused end bosses located at opposite ends to space the pandaeuna or tubes apart, forming a common fluid manifold of feed fluid through the pandaewoo or tubes. These spaced apart plates or tubes allow the transverse flow of other liquids, such as air, between the plates and tubes, and the cooling fins are often located in the spaces between the plates or tubes and the heat transfer coefficient of the heat exchanger. To increase.

Occasionally, the inlet and outlet fittings located in these manifolds are placed between the plate treatments or tubes to allow the fluid to flow along a set passage or circuit using a set coupling or sequence of fluids between the plate treatments or tubes. Sometimes it is also desirable to split laminate treatments or tubes into separate modules, each with its own inlet and outlet so that an effective multiple heat exchanger or one unitary module exists.

In the past, the way to achieve this desirable result has been the use of special or single plates or tubes for spacers and possibly some plate treatments or tubes, where the end bosses of the special plates or tubes are all of the same height. It is adapted to accommodate inlet and outlet fittings, reduced or possibly reduced. Alternatively, some plate treatments or special, exceptionally high pins or double or triple layer pins may be used between the tube or tube end bosses to allow entry and exit fitting where the inlet or outlet fittings should be located. have. However, the difficulty of this method is that a variety of single or complex shaped parts are required, which makes assembly of the heat exchanger difficult and consequently makes a lot of errors by placing the bad parts in the wrong place. As a result, a large number of defective or malfunctioning heat exchangers are produced.

The present invention uses joint mountings or end brackets sized to use special sizes of inlet or outlet fittings that allow the same fin height pins to be used while minimizing the number of different types of components that must be used to produce the heat exchanger. Thereby easily adapting to different flow circuit arrangements and inlet fitting sizes.

The present invention relates to a plate of a type having a plurality of laminate treatments or tubes with cooling fins positioned therebetween, or a tube and fin heat exchanger, in particular a plate treatment or a channel in a tube or It relates to a device for changing a circuit.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings, for example, and the contents of the drawings are as follows:

1 is an exploded perspective view of a portion of a preferred embodiment of one heat exchanger according to the present invention;

FIG. 2 is a partially cut away elevational view of the upper left corner of the heat exchanger of FIG. 1 taken along the direction of arrow 2-2; FIG.

3 is a plan view of a mounting or end bracket used in the heat exchanger of FIG. 1;

4 is a cross-sectional view taken along line 4-4 of FIG. 3;

5 is a cross-sectional view taken along line 5-5 of FIG. 3;

FIG. 6 is a front view or elevation view of the mounting bracket shown in FIG. 3; FIG.

7 is a plan view of a mounting bracket subassembly as used in the heat exchanger of FIG. 1;

8 is a sectional view taken along line 8-8 of FIG. 7;

9 is a cross-sectional view taken along line 9-9 of FIG. 7;

10 is a sectional view taken along line 10-10 of FIG. 7;

FIG. 11 is a front or elevation view of the subassembly of FIG. 7; FIG.

12 is a plan view of a portion of another embodiment of a mounting bracket according to the present invention.

According to one aspect of the invention there is provided a mounting bracket for producing a plate or tube heat exchanger. The mounting bracket includes a generally flat plate having a central portion on the plane and an opposing eccentric end located in a plane parallel to the central portion and away from the central portion. The central part has a gap extending laterally in the direction opposite to that of the eccentric end. The eccentric end extends the set primary distance from the center portion on the plane, and the gap projection extends the secondary set distance from the center portion on the plane.

According to another aspect of the present invention there is provided a fin heat exchanger with a plate or tube including a plurality of laminated hollow plate treatments or tubes including mating end bosses with connecting holes formed therein, thereby providing a fluid through the plate treatment or tube. Form a manifold for the flow of. The bottom pin is located under the laminate or under the tube. At least one middle pin is located between the plate treatment or the tube. All of the pins extend between each end boss. The upper and lower mounting brackets are provided so that each of the upper and lower pins has a flat central portion, and the opposite eccentric end is located in a plane parallel to and separated from the central portion and in contact with the adjacent end boss of the adjacent plate Daewoo or tube. The end extends the primary set distance from the planar center. The central part also has a gap projection extending transversely in the direction opposite to that of the eccentric part. The projection extends the secondary set distance from the center of the plane. One of the end portions of the piece has an inlet orifice connected to one of the end boss holes and the other eccentric end has an outlet orifice connected to another end boss hole.

Best Mode for Carrying Out the Invention:

1 and 2, preferred embodiments of the plate and fin heat exchanger according to the invention are indicated generally by reference numeral 10. The heat exchanger 10 comprises two modules 12 and 14, each with a separate flow circuit for using different liquids. For example, the module 12 may be used to cool an automatic transmission oil or a liquid and the module 14 may be used to cool an automobile engine oil. However, the heat exchanger 10 may also be used to heat other liquids. Also shown are two modules 12, 14, but any number of modules may be combined in a single heat exchanger 10.

The heat exchanger 10 is formed of a plurality of laminated, hollow plate treatments 16, 18, although tubes may be used instead of plate treatment. For the purpose of its disclosure, the treatment is considered equivalent to the tube. Other conduits may also be used and collectively all of these plate treatments, tubes or other conduits are sometimes referred to as flow passages. The plate treatment 16 is called dimple plate treatment 16 as it is in the form of a mating plate with dimples 20 coupled inwardly. The plate Daewoo 18 is formed of a plate with a flat central portion 22 and expansion turbolizers 24 are located inside the plate Daewoo. The plate treatment 18 is accordingly called flat treatment. Each plate treatment 16, 18 has a pair of end bosses 26, 28. This end boss has passage holes 30, 32 to form an arranged flow manifold for the flow of liquid through the plate treatment. Some end bosses, such as end boss 27, may have no holes in them, or these holes may be closed in other ways, so as to have a special flow circuit in the module as described below.

The heat exchanger 10 includes an upper fin 34 located above the laminate plate treatment 16 and a lower fin 36 is positioned below the laminate plate treatment 18. Module 12 also has a lower pin 36 and module 14 has an upper pin 34. The middle pin 38 is located between the plate treatments. All pins 34, 36 and 38 extend between their respective end bosses 26, 27 and 28 located at opposite ends of the plate treatment.

Plate treatments 16, 18 or equivalent to tubes 34, 36 and 38 are not originally considered part of the invention. Any type of plate or tube and any type of fin dimple or flat turbo riser can be used in the heat exchanger 10. However, it is the task of the present invention that all of the pins 34, 36 and 38 are generally the same height and all of the end bosses 26, 27 and 28 are generally the same height. In other words, it is not necessary to use special fins or fins of different heights in the heat exchanger 10, or to use plate treatments or tubes where a portion of the plate or tube has short bosses of different heights.

The module 12 has an upper mounting or end bracket 42 and the module 14 has a lower mounting or end bracket 44. Mounting brackets 42 and 44 are shown separately in FIGS. 3 to 6. The module 12 also has a lower mounting bracket 46 and the module 14 has an upper mounting bracket 48. In fact, all mounting brackets 42, 44, 46 and 48 are identical. The mounting brackets 46 and 48, however, are preferably in the form of subassemblies shown in themselves, as described in detail in Figures 7-11 and below. Brackets 42, 44, 46 and 48 are called mounting brackets, but they can also be called end brackets. This is because it does not need to be used to install the heat exchanger 10 or other parts of the heat exchanger 10.

3 to 6, in particular, the mounting or end brackets 42 and 44 are opposite eccentric ends 54, located in a plane parallel to and distant from the planar center 52 and center 52; 56) has a flat central portion 52. As best seen in FIG. 2, the planar center portions 52 of the upper and lower mounting brackets 42 and 46 are in contact with the upper and lower pins 34 and 36, respectively. Similarly in module 14 the planar center 52 of the upper and lower mounting brackets 48 and 44 abuts the respective upper and lower pins 34 and 36 for this module. Eccentric ends 54, 56 are common but abut adjacent neighboring bosses 26 or 28. The eccentric ends 54 and 56 extend from the planar center portion 52 by the first set distance. This set distance is equal to 1/2 of the pin height of the pins 34, 36 and 38.

The planar center portion 52 also has a gap protrusion in the form of dimples 58 and 60 and extends laterally along the direction opposite to the direction of the eccentric ends 54 and 56. The projections or dimples 58 and 60 extend from the planar center portion 52 at a secondary set distance. These set distances are two mounting brackets or end brackets that are common in sub-assembly 50 but are positioned back to back. The distance between adjacent eccentric ends of each end of the mounting bracket is equal to the height of the end fitting 62 located therebetween. For the purposes of this disclosure, this fitting height is referred to as the third set distance.

As best seen in FIG. 3, one of the eccentric ends 54 of the mounting brackets 42 and 44 is formed by the flow orifice 64 and the other eccentric ends 56 are empty or closed. The eccentric end 56 is formed with a peripheral notch (groove) to direct the flow of the heat exchanger 10 and to direct the liquid flow circuit in the heat exchanger as described later. It can also be seen that the circumferential notch 66 is provided at the eccentric end 54 instead of the eccentric end 56 to obtain the same result.

Referring again to FIGS. 1 and 2, the end fitting 62 includes an internal flow passage 68 in communication with the flow orifice 64 in the eccentric end 54. In fact, the end fitting 62 has a transverse hole arranged with the flow orifice 64, and the end fitting 64 is attached to the end 54, as indicated by the forming flange 70 of FIG. Use a staking operation.

As also shown in Figures 1 and 2, the heat exchanger 10 includes a bracket for attaching or attaching a bracket for installing the heat exchanger in a desired position. The attachment bracket 72 may be of any shape desired, but has a circular or semi-circular hole 74 for the dimple 58 to assist in disposing the attachment bracket 72 during assembly of the heat exchanger 10. It is preferable. Attachment bracket 72 is provisionally attached to mounting brackets 52 and 54 in a riveting 76 or by a swaging or staking process under the trademark TOGGLE LOCK, as described in detail below. If desired, suitable attachment brackets may also be positioned in the subassembly 50 or between the end brackets 42 and 44. This arrangement is particularly suitable where it is necessary to install other components before and after the heat exchanger 10.

Next, referring to FIGS. 7 to 11, it is noted that the dimple 60 has a larger diameter than the dimple 58. The reason for this is to facilitate the attachment of the central portion 52 to form the subassembly 50. With reference to FIG. 9 this is done using a punch and die set manufactured by the trademark TOGGLE LOCK. It is a clinching process where the punch pushes the metal out of both parts to reach an expansion die, which holds a button together at the bottom of the part. This is like a self-supporting rivet and the punch leaves a button 80 on one side of the mating part and on the other side of the part as shown in FIG. The larger dimple 60 has some additional material for this process so that the punch does not break the material. However, if necessary, mounting brackets can be fitted instead of TOGGLE LOCK using rivets or spot welding.

Mounting or end brackets 42, 44, 46 and 48 are also formed with array holes 82 and peripheral notches 83 to assist in installing the part during assembly or subassembly.

Next, referring to FIG. 12, the gap projection can be in the form of an elongate rib 84 instead of the dimples 58 and 60. Preferably, the ribs 84 allow air to flow between the planar centers of the sub-assemblies 50 with rib segments, but the ribs can be full length if desired. The ribs can also be inclined laterally rather than longitudinally.

In the assembly of the heat exchanger 10, a desired flow circuit or passage is first determined. For example, in the module 12 of the heat exchanger shown in FIG. 1, fluid enters one of the end fittings 62 and passes through one inlet flow orifice 64 of the eccentric end and one of the end boss holes 30. . The fluid now flows along the length of one of the plate treatments 16. The flow reverses at the opposite end of the plate treatment and returns through the exit orifice through the other end fitting 62. Either fitting 62 can be used as the flow inlet fitting; The other end fitting 62 is a flow out fitting. In module 14 the end fitting 62 is located on the right (not shown). The fluid flow travels along one or more of the plate treatments 18 through one end fitting 62 in a similar manner. The flow now reverses as the end boss 28 forms the manifold and the fluid returns and flows out through the other end fitting 62.

After determining the desired flow circuit of the heat exchanger 10, the required number of plate treatments 18 and fins 34, 36 and 38 connect the end fitting 62 to the eccentric end of the mounting bracket 44 and then the lower mounting. It is connected to the top of the bracket 44. Subassembly 50 is then installed on top of the upper pin 34. The required number of plate treatments 16 are then wrapped in the subassembly 50 and the upper mounting brackets 52 connect the end fittings 62 to the eccentric ends 54 of the upper mounting brackets 42 and then the module again. It is located at the top of the upper pin 34 of (12). The assembly is then permanently combined by brazing or soldering to complete the heat exchanger.

It will be understood by those skilled in the art that any flow pattern or circuit can be provided to the heat exchanger by replacing the mounting brackets end to end and turning the end fitting 62 upside down. Instead of multiple passages through the plate treatment 16 it may be a flooding module where the fluid flows in the same direction through all the plate treatments in either or both of the modules.

Although the subassembly 50 is shown in FIGS. 7-11 having a flow orifice eccentric end 54 located adjacent to the closed eccentric end 56, any one of the mounting brackets may be reversed. In this case, the adjacent flow orifice eccentric end 54 may have one end fitting 62 with a transverse hole passing directly through the fitting so that flow through both orifices 64 is simultaneously entered into two adjacent modules. Make this possible.

It will also be appreciated that the use of multiple subassemblies 50 allows the heat exchanger 10 to be fabricated to have any number of additional modules. Furthermore, the end fitting 62 can be directed in different directions, such as transverse to the plate treatment.

If it is necessary to use an end fitting 62 with a different height, this can be used simply by changing the height of the dimples 58 and 60, so that the distance between adjacent eccentric ends 54 and 56 is the desired end fitting between them. The height of the The same mounting bracket can also be used in the heat exchanger 10 because the dimple height is not a problem in the upper and lower mounting brackets 42 and 44. As described above, the pin height of the eccentric end portion ensures that the same pin height can be used as a different fitting height, so there is no need to change either.

Many modifications and variations are possible in the practice of the present invention without departing from the spirit or scope thereof in light of the above teachings. Accordingly, the scope of the present invention may be considered to be in accordance with the subject matter defined in the following claims.

Claims (20)

In the mounting brackets for producing plate or tube heat exchangers, the mounting brackets include: An elongated generally flat plate having an opposite eccentric end positioned on a plane parallel to the center of the plane and centrally away from the center; The central portion has a gap extending laterally in the direction opposite to that of the eccentric end and the eccentric end extends the primary set distance from the planar center; Spacing projection is a stepped dimple mounting bracket of the heat exchanger that extends the secondary set distance from the center of the plane. The mounting bracket of claim 1, wherein the primary setting distance is equal to one-half of the pin height where the mounting bracket is used in a plate with fins between the eccentric ends and in a fin or tube heat exchanger. . The mounting bracket according to claim 1, wherein the secondary setting distance is the distance between the eccentric ends of the mounting brackets facing each other at the positions where the two mounting brackets face each other. 4. The mounting bracket according to claim 1, 2 or 3, wherein the eccentric end is formed of a flow orifice and the other eccentric end is a blank. 4. The mounting bracket according to claim 1, 2 or 3, wherein the gap projection is a dimple type (auxiliary type). The mounting bracket according to claim 1, 2 or 3, wherein the gap projection has a shape of an extension rib. The mounting bracket according to claim 1, 2 or 3, wherein the gap projection has a shape of an extension rib. The mounting bracket according to claim 4, wherein one of the eccentric ends is formed with a peripheral notch to distinguish two eccentric ends. 6. The mounting bracket of claim 5, wherein the gap projection dimples have different diameters. Plate or tube and fin heat exchangers include: a plurality of laminated hollow plate treatments or tubes comprising mating end bosses with through holes formed therein to form a manifold for the flow of liquid through the plate treatment or tube. A module comprising a; An upper pin positioned at the top of the laminated plate treatment or tube; A lower pin located under the laminated plate treatment or tube; At least one intermediate pin located between the plate Daewoo or the tube; All the pins extending between each boss; Upper and lower mounting brackets each having a planar center portion disposed on a plane parallel to and spaced apart from each of the upper and lower pins and in contact with opposite eccentric ends of the adjacent plate treatments or adjacent end bosses of the tubes; An eccentric end extending from the plane center to the first set distance; In addition, the central portion having a gap extending in the transverse direction along the opposite direction of the eccentric end, the projection extending the secondary set distance from the planar center; Any one of said eccentric ends having an inlet orifice in communication with either of the end boss holes; And another eccentric end having an outlet orifice communicating with the end boss hole. The heat exchanger of claim 10, wherein the set distance is 1/2 of a fin height. 11. The heat exchanger of claim 10, further comprising an end fitting attached to said one eccentric end and having a flow passage communicating with said inlet orifice. 13. The heat exchanger of claim 12, further comprising a flow path in communication with said outlet orifice including a second end fitting attached to said other eccentric end. 14. The method of claim 12 or 13, further comprising a third mounting bracket mounted back to back with any one of the upper and lower mounting brackets, wherein the second set distance is a distance between the one eccentric end and the third mounting bracket. Heat exchanger, characterized in that the same height of the end fitting located between. 11. The heat exchanger of claim 10, wherein the module is a first module and includes one or more additional modules, and an upper mounting bracket of the one module is connected back to the lower mounting bracket of the additional module. . 16. The device of claim 15, further comprising an end fitting located between adjacent eccentric ends of the mounting bracket back to the second set distance such that the distance between the eccentric ends is equal to the height of the end fittings located therebetween. Heat exchanger. 17. The heat exchanger of claim 16, wherein the end fitting comprises a flow passage through at least one of the effluent inlet orifices at the eccentric end. 16. The heat exchanger of claim 15, wherein the first predetermined distance is equal to 1/2 of a fin height. 18. The heat exchanger of claim 17, further comprising a plurality of additions, such as end fittings, wherein one of said additional end fittings is attached to each other eccentric end having an outlet orifice. 18. The mounting bracket according to claim 15, 16 or 17, wherein the gap projection is dimpled.